(Jon Oglesby 58)
Boston United were beaten in the Lincolnshire Senior Cup final, but the Pilgrims' biggest concern will be Jake Wright, who left the pitch on a stretcher.
The striker momentarily lost consciousness during a first-half collision.
But following seven minutes of treatment he left the pitch at Lincoln City's LNER Stadium, wearing a neck brace and heading for A&E.
Jon Oglesby's wonderful second-half strike settled a contest where United failed to really hit their stride.
The Owls set their stall out with some crunching tackles, ex-Pilgrim Conor Marshall in the book early on for clattering Tyrell Warren.
From the resultant free kick Martyn Woolford's inswinging dead ball rattled the Town upright.
Oli Donald failed to trouble United keeper Peter Crook with a header while opposite number Theo Richardson was called upon to block Woolford's low drive and tip away Luke Shiels' goalbound header.
As the first half was coming to a close Wright collided with an opponent chasing the ball and was knocked unconscious.
After lengthy treatment on the pitch, he left to applause on a stretcher, wearing a neck brace.
The Owls took a 58th minute lead following a swift break, Curtis Bateson setting Oglesby free before he curled past Crook with a pinpoint first-time 20 yarder.
United responded with Mulhern forcing two saves from Richardson before Bateson almost made it 2-0 with a drive across the face of goal.
Caine Winfarrah was next to try his luck, his low strike hitting Crook's side netting.
Boston rallied and Dominic Knowles and Jay Rollins both hit the side netting.
Crook was called upon to claw away Winfarrah's attempted lob as the Owls held on to be crowned county champions.
CLEETHORPES: Richardson, Lowe (Winfarrah 66), Lacey, Dickens, Walker, Donald, Bateson, Flett, Batty (Vernon HT), Marshall, Oglesby; Subs (not used): Usher, Boswell.
UNITED: Crook, Warren (Garner 76), Jackson (Knowles 71), Heslop (Platt HT), Ainge, Shiels, Woolford (Whittle 66), Abbott, Wright (Mulhern 45), Thewlis (Middleton 80), Rollins; Subs (not used): Frestle.
REF: David Jones.